Improved spring-catch for lamp-chimneys



UNTED STATES' lPATElWr EFICE..

MERWIN ECWLER, or MEEIDEN,f CONNECTICUT, AssieNoE rro EDWARD MILLER, `CESAME PLACE.

" AIMPROVED SPRING-CATCH oR LAMP-CHIMNEYS.

` l Specification forming part ofLc-tters Patent No. 35,649, dated June17, 1862. I

To all whom# may concern: l

4Be it known that` I, MERWIN FCWLER, of Meriden, in the county of N ewHaven and State of'Oonnecticut, haveinvented a new and usefulImprovementin Attaching Chimneys to Lamps; andl dohereby declare thatthe fo1;

lowing is a full, clear,l and exact description 'of the same, referencebeing had to theaccompanying drawings, making a part of this specicaton,in which-f t v y Figure 1 is a vertical. central section of a lamp topand chimney, the latter being attached to theformer according to myinvenl. tion; Fig. 2, a plan .or top'view of the same.

Similar letters otureference indicate correspondinglparts in the twofigures. A

This invention consists in securing the chim-` ney to the lamp-top bymeans of a hook which is attached t0 the `lamp-top and has a springconnected to it, andall'arranged in such a manner that the hookwill,'under the action Aot' the spring, pressdovvn upon vthe flange 'ofthe chimneyand lirinly secure the latter to the cone of the burner.

The-object of the invention is to obtain a chimney catch or fasteningwhich will not only secure firmly the chimney to the lamp-top and Vadmitof the former being readily attached to and detached from the latter,but which will u also possess the advantage of being secured to thelamp-top Without cutting away any portion of the latter to admit air`into the chimney or burner-a result Which attends all of the springcatches or fastenings which have passed undermy observation.

rre ,enable these skilled' in the are te funy l i. understand andconstruct my invention, IWill proceed to describe it.

`Arepresentsa lamp top or` burner, which may be constructed in the`ordinary way, and B the chimney, provided with a Iiangc, a, at itsbottom, as usual.

G'is a hook of the form commonly termed .hawkbill.` (See Fig. l.) Thishook is attached to an axis, b, the ends -of which are fitted in lugsor. projections c c on the upper edge of the lamp-top and allowed toturn freely therein. The axis b has a spiral spring,

d, attached to it, one end of which is secured Ato or bears against theburner.. This spring has a tendency to keep the inner end of the hook Cpressed` down on-the flange a of the chimney, whereby the latter issecured on the cone. l

The hook C extends outward sufficient] y far to admit ofbeing readilydepressed by the thumb or linger, so as to cause its inner endto, and itmay be as cheaply applied as any of them, and is not liable to becomederanged by use, which is the case with those fasteningsl having aspring and hook or catch combined in one piece, the spring being liableto become strained andbent out of proper position-a contingency vwhichcannot occur in my invention.

Having thus described myinvention, whatl claim as new, and desire tosecure by Letters The combination of the hook C and spring y d, appliedto the lamp top or burner, substantially as and for the purpose hereinset forth.

MERVIN FOWLER.

Witnesses: 1 E. C. BIEDsEY, L. BrRDsEY.

